Recruiting Breast Cancer Studies in Los Angeles
An Adjuvant Endocrine-based Therapy Study of Camizestrant (AZD9833) in ER+/HER2- Early Breast Cancer (CAMBRIA-2)
This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard adjuvant endocrine therapy for patients with ER+/HER2- early breast cancer with intermediate-high ...
I-SPY TRIAL: Neoadjuvant and Personalized Adaptive Novel Agents to Treat Breast Cancer
The purpose of this study is to further advance the ability to practice personalized medicine by learning which new drug agents are most effective with which types of breast cancer tumors and by learn...
A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence
The primary goal of this study is to evaluate the effectiveness of elacestrant versus standard endocrine therapy in participants with node-positive, Estrogen Receptor-positive (ER+), Human Epidermal G...
Study of Sacituzumab Govitecan-hziy and Pembrolizumab Versus Treatment of Physician's Choice in Patients With Triple Negative Breast Cancer Who Have Residual Invasive Disease After Surgery and Neoadjuvant Therapy (ASCENT-05/AFT-65 OptimICE-RD/GBG 119/NSABP B-63)
The goal of this study is to find out if the experimental product, sacituzumab govitecan-hziy (SG) in combination with pembrolizumab given after surgery, is effective and safe compared to the treatmen...
A Study to Evaluate Efficacy and Safety of Giredestrant Compared With Fulvestrant (Plus a CDK4/6 Inhibitor), in Participants With ER-Positive, HER2-Negative Advanced Breast Cancer Resistant to Adjuvant Endocrine Therapy (pionERA Breast Cancer)
This is a Phase III, randomized, open-label multicenter study that will evaluate the efficacy and safety of giredestrant compared with fulvestrant, both in combination with the investigator's choice o...
A Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) as Monotherapy and in Combination With Pembrolizumab (MK-3475) in Participants With Triple-Negative Breast Cancer (MK-2870-011/TroFuse-011)
Researchers want to know if sacituzumab tirumotecan given alone or with pembrolizumab can treat triple negative breast cancer (TNBC). The main goal of this study is to learn if people treated with sac...
A Study to Evaluate the Efficacy and Safety of Giredestrant in Combination With Phesgo (Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf) Versus Phesgo in Participants With Locally Advanced or Metastatic Breast Cancer (heredERA Breast Cancer)
This Phase III, randomized, two-arm, open-label, multicenter study will evaluate the efficacy and safety of giredestrant plus Phesgo compared with Phesgo after induction therapy with Phesgo plus taxan...
Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)
A Phase Ib/III Open-label, Randomised Study of Capivasertib plus CDK4/6 Inhibitors and Fulvestrant versus CDK4/6 Inhibitors and Fulvestrant in Hormone Receptor-Positive and Human Epidermal Growth Fact...
A Phase 1/2a Study of DB-1303/BNT323 in Advanced/Metastatic Solid Tumors
This is a dose-escalation and dose-expansion Phase 1/2a trial to evaluate the safety and tolerability of DB-1303/BNT323 in subjects with advanced solid tumors that express HER2....
Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects
This is a prospective, randomized, double-blinded, placebo-controlled, multi-center, Phase 3 study of GLSI-100 immunotherapy in HLA-A\*02 positive and HER2/neu positive subjects who are at high risk f...
Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)
This is a Phase 3, open-label, randomized, clinical trial evaluating the efficacy and safety of gedatolisib plus fulvestrant and CDK4/6 Inhibitors for the treatment of patients with locally advanced o...
Beamion BCGC-1: A Study to Find a Suitable Dose of Zongertinib Used Alone and in Combination With Other Treatments to Test Whether it Helps People With Different Types of HER2+ Cancer That Has Spread
This study is open to adults aged 18 years and older with different types of HER2+ cancer that has spread and cannot be removed by surgery. People can take part in this study if their tumours show HER...
A Study of Izalontamab Brengitecan Versus Chemotherapy in Participants With Previously Untreated, Locally Advanced, Recurrent Inoperable, or Metastatic Triple-negative Breast Cancer Ineligible for Anti-PD(L)1 Drugs (IZABRIGHT-Breast01)
The purpose of this study is to assess the efficacy and safety of iza-bren, a bi-specific antibody-drug conjugate against EGFR and HER3 with a topoisomerase inhibitor payload versus treatment of physi...
A Study Comparing the Efficacy and Safety of Zanidatamab to Trastuzumab, Each in Combination With Physician's Choice Chemotherapy, for the Treatment of Participants With Metastatic HER2-positive Breast Cancer
The efficacy and safety of zanidatamab in combination with physician's choice of chemotherapy compared with trastuzumab in combination with physician's choice of chemotherapy will be evaluated for the...
A Study of DB-1303/BNT323 vs Investigator's Choice Chemotherapy in HER2-Low, Hormone Receptor Positive Metastatic Breast Cancer (DYNASTY-Breast02)
The goal of this clinical trial is to assess the efficacy of DB-1303/BNT323 compared with investigator's choice chemotherapy in terms of progression-free survival (PFS) by blinded independent central ...
OP-1250 (Palazestrant) vs. Standard of Care for the Treatment of ER+/HER2- Advanced Breast Cancer
This phase 3 clinical trial compares the safety and efficacy of palazestrant (OP-1250) to the standard-of-care options of fulvestrant or an aromatase inhibitor in women and men with breast cancer whos...
Saruparib (AZD5305) Plus Camizestrant Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer
The primary objective of the study is to measure efficacy of saruparib (AZD5305) plus camizestrant compared with physician's choice CDK4/6i plus ET in patients with BRCA1, BRCA2, or PALB2m, HR-positiv...
A Phase 2 Study of T-DXd in Patients With Selected HER2 Expressing Tumors
This is an open-label, multi-center, multi-cohort, Phase 2 study to evaluate the efficacy and safety of trastuzumab deruxtecan (T-DXd) for the treatment of selected HER2-expressing tumors. This study...
Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Participants With Metastatic Breast Cancer
This is a multicenter, Phase 1b/2 trial in participants with estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced/metastatic breast cancer. The phase 1b pa...
Study of the Bria-IMT Regimen and CPI vs Physicians' Choice in Advanced Metastatic Breast Cancer.
This is a multicenter randomized, open label study to evaluate overall survival with the Bria-IMT regimen in combination with Checkpoint Inhibitor \[Retifanlimab\], versus Treatment of Patients'/Physi...
Testing the Role of FDG-PET/CT to Predict Response to Therapy Prior to Surgery for HER2-positive Breast Cancer, The DIRECT Trial
This phase II trial tests how well an imaging procedure called fludeoxyglucose F-18 (FDG) positron emission tomography/computed tomography (PET/CT) works in predicting response to standard of care che...
A Study to Evaluate the Efficacy and Safety of Inavolisib in Combination With Phesgo Versus Placebo in Combination With Phesgo in Participants With PIK3CA-Mutated HER2-Positive Locally Advanced or Metastatic Breast Cancer
This study will evaluate the efficacy and safety of inavolisib in combination with Phesgo (pertuzumab, trastuzumab, and rHuPH20 injection for subcutaneous use) compared with placebo in combination wit...
(Z)-Endoxifen for the Treatment of Premenopausal Women With ER+/HER2- Breast Cancer
This open-label research study is studying (Z)-endoxifen as a possible treatment for pre-menopausal women with ER+/HER2- breast cancer. (Z)-endoxifen belongs to a group of drugs called selective estro...
Prevention of Frailty With Fisetin and Exercise in Breast Cancer Survivors
This phase II trial tests how well fisetin and exercise works in preventing frailty in breast cancer survivors. Fisetin is a natural substance found in strawberries and other foods and is available as...
A Study of Alisertib in Combination With Endocrine Therapy in Patients With HR-positive, HER2-negative Recurrent or Metastatic Breast Cancer
PUMA-ALI-1201 is a randomized, dose optimization, multicenter, Phase 2 study of alisertib administered in combination with endocrine therapy in participants with pathology-confirmed HR-positive/HER2-n...
Study of Belzutifan (MK-6482) Plus Fulvestrant for ER+/HER2- Metastatic Breast Cancer (MK-6482-029/LITESPARK-029)
The purpose of this study is to assess the efficacy and safety of belzutifan (MK-6482) plus fulvestrant compared to everolimus plus endocrine therapy (ET) (investigator's choice of fulvestrant or exem...
A Study of Disitamab Vedotin in Adults With HER2 Expressing Advanced Breast Cancer
The purpose of this clinical study is to learn about the safety and effects of the study medicine (called disitamab vedotin) for the possible treatment of people with breast cancer that is hard to tre...
Converting HR+ Breast Cancer Into an Individualized Vaccine
Newly diagnosed post-menopausal women with clinical stage II-III, HR+HER2- breast cancer are eligible to a randomized trial, concurrently open at five US academic institutions. Patients receiving 4 mo...
Safety and Preliminary Effectiveness of BNT327, an Investigational Therapy for Breast Cancer, When Given in Combination With Chemotherapy
This study is a Phase II, multi-site, randomized, open-label clinical study to evaluate the safety, efficacy, and pharmacokinetics (PK) of BNT327 at two dose levels in combination with chemotherapeuti...
A Study of Sacituzumab Govitecan Given at an Alternative Dose and Schedule in Participants With Advanced Triple-Negative Breast Cancer
The goal of this clinical study is to learn more about the study drug sacituzumab govitecan-hziy (SG) given at an alternative dose and schedule, in participants with triple-negative breast cancer (TNB...
A Phase 2 Study of PCS6422 With Capecitabine in Patients With Advanced or Metastatic Breast Cancer
This is an adaptive Phase 2, open-label, randomized, multi-center study evaluating up to 2 regimens of PCS6422 with capecitabine (Cap) vs. standard dose of Cap alone in patients with advanced or metas...
Trastuzumab Deruxtecan Alone or in Combination With Anastrozole for the Treatment of Early Stage HER2 Low, Hormone Receptor Positive Breast Cancer
This phase II trial investigates how well trastuzumab deruxtecan works alone or in combination with anastrozole in treating patients with HER2 low, hormone receptor positive breast cancer. Trastuzumab...
Fisetin to Improve Physical Function in Stage I-III Breast Cancer Survivors
This phase II trial tests whether fisetin works to improve physical function in women who have received chemotherapy for stage I-III breast cancer treatment. Fisetin is a naturally occurring substance...
Peri-Operative Immune Checkpoint Inhibition and Cryoablation in Women With Triple-negative Breast Cancer
The purpose of this study is to determine the impact of pre-operative cryoablation, and immune checkpoint inhibition (ICI) on on 3-year Event Free Survival (EFS), in women with residual hormone recept...
Sequencing Antibody Drug Conjugates in ER+/HER2 LOW MBC
The purpose of this research study is to see if the medication sacituzumab govitecan (SG) is effective at the currently approved dose and schedule in people who have previously received trastuzumab de...
ARX788 in HER2-positive, Metastatic Breast Cancer Subjects (ACE-Breast-03)
A Global, Phase 2 Study of ARX788 in HER2-positive Metastatic Breast Cancer Patients who were previously treated with T-DXd...
DNA-guided Second Line Adjuvant Therapy for High Residual Risk, Estrogen Receptor Positive, HER-2 Negative Breast Cancer (DARE)
A randomized, Phase II trial of circulating tumor DNA-guided second line Adjuvant therapy for high Residual risk, Estrogen Receptor positive, HER-2 negative breast cancer (DARE)...
Testing the Use of Neratinib or the Combination of Neratinib and Palbociclib Targeted Treatment for HER2+ Solid Tumors (A ComboMATCH Treatment Trial)
This phase II ComboMATCH treatment trial compares the effect of neratinib to the combination of neratinib and palbociclib in treating patients with HER2 positive solid tumors. Neratinib and palbocicli...
Study of Abemaciclib and Elacestrant in Patients With Brain Metastasis Due to ER+/HER-2- Breast Cancer
This is a multi-site, global, open-label study that includes a phase 1b evaluation of elacestrant in combination with abemaciclib in women and men with brain metastases from estrogen receptor (ER)-pos...
A Dose Finding Phase 1 of Sarilumab Plus Capecitabine in HER2/Neu-Negative Metastatic Breast Cancer and a Single-arm, Historically-controlled Phase 2 Study of Sarilumab Plus Capecitabine in Stage I-III Triple Negative Breast Cancer With High-Risk Residual Disease (EMPOWER)
This study looks to advance a novel and potent strategy to eliminate minimal residual disease (MRD) in triple negative breast cancer (TNBC) present even after multimodal treatment, thereby improving s...
Phase 1/1b/2 Study of Oral PMD-026 in Patients With Metastatic Breast Cancer
The purpose of this study is to test the safety and tolerability of PMD-026 in patients with metastatic breast cancer. PMD-026 is a targeted oral agent designed to kill tumor cells in metastatic breas...
A Phase I/II, Dose Finding and Optimization Study of [177Lu]Lu-NeoB in Combination With Capecitabine in Patients With GRPR+, ER+, HER2- Metastatic Breast Cancer After Progression on Previous Endocrine Therapy in Combination With a CDK4/6 Inhibitor.
In the phase I part, to determine the recommended doses (RD) and dosing regimens of \[177Lu\]Lu-NeoB in combination with capecitabine in adult patients with gastrin releasing peptide receptor positive...
A Study of Invikafusp Alfa (STAR0602), a Selective T Cell Receptor (TCR)-Targeting, Bifunctional Antibody-fusion Molecule, in Combination With Sacituzumab Govitecan in Participants With Advanced Solid Tumors
This is a Phase 1b/2, Open-label Study to Investigate the Safety and Efficacy of Invikafusp alfa (STAR0602), a Selective T Cell Receptor (TCR)-targeting, Bifunctional Antibody-fusion Molecule, in Comb...
IIT2023-09-Chung-UpfrontTAD: Upfront TAD/SNB in Patients With Breast Cancer With Nodal Metastases
The purpose of the study is to determine the recurrence rates and survival of patients with clinical T1-2N0 ER+/Her2- invasive breast cancer who have biopsy proven image detected nodal disease treated...
Phase II Trial of Ivonescimab in Combination With Carboplatin + Docetaxel in Patients With Early-Stage Triple Negative Breast Cancer
This is a single arm phase II trial combination of ivonescimab and carbo-docetaxel every 3 weeks for 6 cycles in patients with early-stage triple negative breast cancer. The trial is designed to test ...
Study of eFT226 in Subjects With Selected Advanced Solid Tumor Malignancies
This clinical trial is a Phase 1-2, open-label, sequential-group, dose-escalation and cohort-expansion study evaluating the safety, pharmacokinetics (PK), pharmacodynamics, and antitumor activity of Z...
Neoadjuvant INBRX-106 (Hexavalent OX40 Agonist) in Combination With Pembrolizumab as a Chemotherapy-sparing Regimen for Stage II TNBC (Triple Negative Breast Cancer) Patients
This is a Phase II trial to assess feasibility of pembrolizumab + INBRX-106 as a chemotherapy-sparing neoadjuvant therapy. One therapeutic arm is being evaluated to provide an informal comparison of p...
About Breast Cancer Clinical Trials in Los Angeles
Breast cancer is a disease in which cells in the breast grow out of control. It is the most common cancer in women worldwide and can also occur in men. Treatment options include surgery, radiation, chemotherapy, hormone therapy, and targeted therapies.
There are currently 47 breast cancer clinical trials recruiting participants in Los Angeles, CA. These studies are seeking a combined 29,430 participants. Research is being sponsored by AstraZeneca, QuantumLeap Healthcare Collaborative, Stemline Therapeutics, Inc. and 32 other organizations. Clinical trial participation is free and participants receive study-related medical care at no cost.
Breast Cancer Clinical Trials in Los Angeles — FAQ
Are there breast cancer clinical trials in Los Angeles?
Yes, there are 47 breast cancer clinical trials currently recruiting in Los Angeles, CA. Browse the studies on this page to find one that fits.
How do I join a clinical trial in Los Angeles?
Browse the studies listed above, click one that interests you, and complete the free eligibility form. A study coordinator at the Los Angeles research site will contact you about next steps.
Are clinical trials in Los Angeles free?
Yes, clinical trial participation is always free. Study-related treatment, medical tests, and doctor visits are provided at no cost. Many Los Angeles studies also compensate for your time and travel.
What breast cancer treatments are being tested?
The 47 active trials in Los Angeles are testing new therapies including novel drugs, biologics, and treatment approaches for breast cancer.
Data updated March 2, 2026 from ClinicalTrials.gov